P2201
NOx Sensor Circuit Range/Performance Bank 1
1999-2000 BMW 323i E46 2.5L I6 🇬🇧
High SeverityPowertrain
Description
NOx sensor on bank 1 is responding but values are outside expected range.
Symptoms
- Check engine light
- Poor emissions performance
- Possible SCR fault codes
Common Causes
- Degraded NOx sensor
- Exhaust leak near sensor
- Contaminated sensor element
Diagnostic Steps
- Compare actual NOx levels to expected at various loads
- Check for exhaust leaks
- Inspect sensor condition
Repair Notes
Replace NOx sensor if out of specification after leak check.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P2201 on Other Vehicles
Common Questions
What does code P2201 mean on a 1999-2000 BMW 323i E46?
P2201 stands for "NOx Sensor Circuit Range/Performance Bank 1". NOx sensor on bank 1 is responding but values are outside expected range.
What are the symptoms of P2201 on a BMW 323i E46?
Common symptoms of P2201 include: Check engine light, Poor emissions performance, Possible SCR fault codes.
What causes P2201 on a 1999-2000 BMW 323i E46?
Common causes of P2201 include: Degraded NOx sensor, Exhaust leak near sensor, Contaminated sensor element.